{"id":"CVE-2026-81739","state":"PUBLISHED","title":"Paytm Payment Gateway < 2.8.9 - Unauthenticated Stored XSS via Payment Callback","description":"The Paytm Payment Gateway WordPress plugin before 2.8.9 does not sanitize and escape data it stores from payment callbacks before outputting it in an admin page, and the integrity check on those callbacks can be forged when the gateway is enabled without credentials, allowing unauthenticated users to store scripts that will run in the session of a store administrator.","publishedAt":"2026-10-01T06:00:23.972Z","updatedAt":"2026-10-01T10:55:59.395Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"WPScan","products":["Unknown Paytm Payment Gateway"],"affected":[{"vendor":"Unknown","product":"Paytm Payment Gateway","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.8.9","versionType":"semver"}]}],"references":["https://wpscan.com/vulnerability/f77f3f04-cb98-4687-9080-dd0c99a7e926/"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/81xxx/CVE-2026-81739.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-81739","state":"PUBLISHED","datePublished":"2026-10-01T06:00:23.972Z","dateUpdated":"2026-10-01T10:55:59.395Z","assignerShortName":"WPScan","assignerOrgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateReserved":"2026-08-27T11:47:20.863Z"},"containers":{"cna":{"title":"Paytm Payment Gateway < 2.8.9 - Unauthenticated Stored XSS via Payment Callback","descriptions":[{"lang":"en","value":"The Paytm Payment Gateway WordPress plugin before 2.8.9 does not sanitize and escape data it stores from payment callbacks before outputting it in an admin page, and the integrity check on those callbacks can be forged when the gateway is enabled without credentials, allowing unauthenticated users to store scripts that will run in the session of a store administrator."}],"affected":[{"vendor":"Unknown","product":"Paytm Payment Gateway","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.8.9","versionType":"semver"}]}],"references":[{"url":"https://wpscan.com/vulnerability/f77f3f04-cb98-4687-9080-dd0c99a7e926/","tags":["exploit","vdb-entry","technical-description"]}],"problemTypes":[{"descriptions":[{"description":"CWE-79 Cross-Site Scripting (XSS)","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"WPScan","orgId":"1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81","dateUpdated":"2026-10-01T06:00:23.972Z"},"credits":[{"lang":"en","value":"Artus KG","type":"finder"},{"lang":"en","value":"WPScan","type":"coordinator"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"WPScan CVE Generator"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2026-81739","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2026-10-01T10:44:45.826864Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","type":"CWE","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-01T10:55:59.395Z"}}]}}}